18259425

素因数分解:

$3^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 60

約数和(自身を含む): 34569216

約数和(自身を除く): 16309791

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 127, 135, 213, 225, 355, 381, 405, 635, 639, 675, 1065, 1143, 1775, 1905, 1917, 2025, 3175, 3195, 3429, 5325, 5715, 5751, 9017, 9525, 9585, 10287, 15975, 17145, 27051, 28575, 28755, 45085, 47925, 51435, 81153, 85725, 135255, 143775, 225425, 243459, 257175, 405765, 676275, 730377, 1217295, 2028825, 3651885, 6086475, 18259425]

約数ペア:

[(1, 18259425), (3, 6086475), (5, 3651885), (9, 2028825), (15, 1217295), (25, 730377), (27, 676275), (45, 405765), (71, 257175), (75, 243459), (81, 225425), (127, 143775), (135, 135255), (213, 85725), (225, 81153), (355, 51435), (381, 47925), (405, 45085), (635, 28755), (639, 28575), (675, 27051), (1065, 17145), (1143, 15975), (1775, 10287), (1905, 9585), (1917, 9525), (2025, 9017), (3175, 5751), (3195, 5715), (3429, 5325)]